dkgndianko

def updator(initial_list: Set[T], new_list: Set[T], creator: Callable[T, U], getter: Callable[T, U], deleter: Callable[T]) -> List[U]:
    result = []
    for e in new_list:
        element = getter(e)
        if not element:
            element = creator(e)
        result.append(element)
    to_delete = initial_list.difference(new_list)
    for e in to_delete:
        deleter(e)

dkgndianko

# from i8ramin - http://getintothis.com/blog/2012/04/02/git-grep-and-blame-bash-function/
# runs git grep on a pattern, and then uses git blame to who did it
ggb() {
    git grep -n $1 | while IFS=: read i j k; do git blame -L $j,$j $i | cat; done
}

# small modification for git egrep bash
geb() {
    git grep -E -n $1 | while IFS=: read i j k; do git blame -L $j,$j $i | cat; done
}